Silent Angel Rhein Z1 Plus Music Server & Roon Core

The Silent Angel Rhein Z1 Plus is a powerful music server that acts as a low-noise hub for demanding streaming and large collections.

An ordinary computer is often too loud for audio, not mechanically, but electrically. The Z1 Plus is the calm library where your data can fully unfold.

Why the Rhein Z1 Plus?

The Z1 Plus is the bigger, more powerful server tier for Roon power users and fully resolved systems.

• Massive aluminum chassis: Acts as a shield against vibration and interference fields and delivers a stable sound.
• High-precision TCXO clocking: Minimizes latencies in the data flow, giving the music more precise rhythm and tangible dynamics.
• VitOS operating system: Focuses processing power on audio output and stops disruptive background processes.
• NVMe SSD bay: Stores large libraries directly in the device, shortening data paths and reducing access times.
• Input for external 25 MHz clock: With a Genesis GX, precision can be increased further.

What you get

The Z1 Plus is the brain of a modern system and shows off its reserves when Roon runs with many DSP functions. Via its dedicated USB audio output it transmits noticeably less noise than standard USB thanks to special filtering, the result is a more relaxed playback that feels less digital. With a linear power supply like the Forester F2, the noise floor drops even further.

Who is the Rhein Z1 Plus for?

The Z1 Plus is for you if you use Roon to its full extent and calculate many digital sound corrections, or serve several zones. Honestly: for pure Spotify streaming, this powerhouse would simply be overkill, the compact Rhein Z1C is enough there. But if you're after maximum composure and calm in your digital setup, there's hardly any way around the Z1 Plus.

Our verdict

The server powerhouse of the Rhein series, silent and with real reserves for Roon and large libraries. If you want to build the foundation of your digital chain without compromise, this is it. SSD fitting, Roon setup and integration into your chain are things we handle at HD Zürisee in Wädenswil.

Technical data

• Processor: powerful quad-core processor (Intel-based), audio-optimized
• Memory: 16 GB or 32 GB (depending on configuration)
• Connections: dedicated USB audio output, USB 3.0, USB 2.0, Gigabit Ethernet
• Clock input: for external 25 MHz master clock
• Storage: internal NVMe SSD bay
• Housing: CNC-machined aluminum
• Dimensions (W × H × D): 200 × 65 × 200 mm
• Weight: approx. 3.6 kg
• Scope of delivery: Rhein Z1 Plus, power cable, network cable, SSD mounting screws, quick guide

Frequently asked questions

Can I use the Rhein Z1 Plus as a Roon Core?

Yes, that's one of its signature disciplines. It offers enough processing power to act as a Roon Core while simultaneously serving several zones with high-resolution music, even with elaborate DSP functions active.

Does the device get loud during operation?

No. The design is completely fanless, cooling happens passively through the massive housing. So even during quiet musical passages you won't hear disruptive background noise, the server simply stays inaudible in the listening room.

How do I get my music onto the internal storage?

Very simple. Once an SSD is installed, the Z1 Plus appears as a network drive in Explorer or Finder, and you conveniently move your files by drag and drop. We handle the initial fitting for you directly in the store on request.

Why buy the Rhein Z1 Plus at HD Zürisee?

Because a server of this class lives on clean setup, from the SSD through Roon to the clock connection. We handle this at our store in Wädenswil, deliver it ready to connect, and support you with our own technician for service and expansion.

Goes well with

The Z1 Plus is the powerful source of your chain. Discover more music servers, complement it with a clock and power supply from the world of Silent Angel, and find matching streamers & network players.